Printing-press



E. 0.. STUMPF.

PRINTING PRESS.

APPLICATION FILED MAY 26, 1919.

Patented Feb. 17, 1920. Fly. .z

Inverz for Ed'wahz d O. Siam 0f 722's AZ Zorneys UNITED STATES PATENTOFFICE.

EDWARD 0. S'IUIVIPF, OF LOS ANGELES, CALIFORNIA.

PRINTING-PRESS.

T 0 oZZ whom it may concern:

Be it known that I, EDWARD O. STUMPF. a citizen of the United States,residing at L'os Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements inPrinting-Presses, of which the following is a specification.

This invention relates to a printing press suitable for making a limitednumber of impressions, and adaptable to have the matter to be printedset up quickly.

The principal object of this invention is to provide a press suitablefor use by those not skilled in the printing art, whereby on shortnotice printed matter may be produced. In addition to the broaderfeature of my in- \ention, there are certain details of design, wherebya simple, durable, strong structure, cheap to manufacture and easy tomanipulate is obtained.

These objects will be more fully understood, as will also other objectsand corre sponding accomplishments of my invention from the followingdetailed description of an embodiment thereof. For the purpose of thisdescription, reference is had to the accompanying drawing, in which: 7

Figure 1 is an elevation partly in section of a complete machine; Fig. 2is an enlarged section taken on the line 22 of Fig. 1; and Fig. 3 is anenlarged elevation of the impression roll carriage and its associatedmechanism.

Referring more particularly to Figs. 1 and 2, the press comprises abox-like frame A, in which is mounted a chase 13 containing type formaking impressions. Spanning the top of the frame is an inking ribbonand mechanism for feeding the ribbon indicated by C. Slidingly mountedupon the top of the frame and over the ribbon is a carriage carrying animpression roll, the carriage being indicated by D. A sheet of paper orcard E to be printed upon is mounted upon the ribbon, and the carriagemoved thereover pressing the paper, ribbon and type into contact.

The frame A has mounted therein a drawer 4: suitable for containing typeto be set up, paper and any other accessories or supplies. Extendingalong the sides of the frame and secured thereto are cleats 5 and 6. Aglass bed 7 is supported upon the cleats.

Resting upon the glass bed is the chase B, which is of the form commonlyused by Specification of Letters Patent.

Patented Feb. 17, 1920.

Application filed May 26, 1919. Serial No. 299,773.

printers with the exception that it has a bottom 8. The type 9 arelocked in the chase in the usual manner. Side members 10 and 11 securelyhold the chase against any side or lateral movement.

Supported in brackets at one end of the frame is a roller 12 for feedingthe inking ribbon. At the other end of the frame is a roller forreceiving the ribbon. This roller has a ratchet wheel 1% for rotatingthe same, and a pawl 15 cooperating therewith. Pawl 15 is operated by alever 16'pivoted to the frame and connected by a link 17 to a lever 18.Lever 18 is pivoted at its lower end as indicated by 19 to the frame A.its upper end having a head 20 arranged to be on gaged by the carriage Din its movement. As carriage D is moved to the end of its travel towardroller 12- it engages the head 20, and thereby motion is transmitted topawl 15 so as to move the ratchet wheel 14 and its roller. A spring orany other suitable means may be provided for moving the pawl and itslinkage back to its normal position.

The carriage comprises side frames 20 and 21. Each side frame issupported by a pair of wheels, the wheels on frame 20 being indicated by22 and 23. The wheels ride upon tracks 24 and 25 mounted upon the sidesof the frame. Arms, one being indicated by 26 extend downwardly fromeach frame, and journaled thereon are rollers, one being indicated by27. Roller 27 rides beneath a track 28 secured to the side of the frame.The side frames are connected by tie members 29 and 30. Mounted inopenings in the side frames are adjustable bearings. One is inclicatedby 31 and has an opening 32 eccentric thereof in which is journaled theend of a shaft 33. The bearing is locked in position by a set-screw 34.The shaft 33 carries an impression roll 35. Roll 35 is positivelyrotated by means of a sprocket wheel 36 engaging a chain 37 strungbetween the ends of the frame. Chain 37 is held against the sprocketnheel by means of'a guide piece 38 shown in Fig. 3. The position of roll35 so as to accommodate it to different thicknesses of paper and ribbonis adjusted by means of the bearings. always in contact with thesprocket 36 and is in no way interfered with by reason of theadjustment. A handle for moving the carriage is indicated by 39.

The type are set in the form and locked.

The chain 37 is and the like are printed, and the machine is especiallyadapted for use with linotype.

The position of roll is adjusted to accommodate it to the thickness ofpaper or card board to be printed upon. The paper or cardboard is thenplaced in position over the type as shown in Fig. l, the carriage beingat either end of the frame. The carriage is now moved over the cardboardforcing the latter against the ribbon and against the type, therebymaking the impression desired. T he printed matter is then removed andanother sheet placed in position. The carriage is now moved back makinganother impression. By positively ro ating the inipression roll, thelatter rolls when it strikes the top ofthe type instead of sliding andthereby blurring the impressions made.

What I claim is:

1. In a device of the class described, a

frame havin a bed t Y e su )orted on said 2. In a device ofthe classdescribed, a

frame having a bed, type supported on said i prising an impression rolladj ustably mounted thereon, a sprocket wheel for rotating said roll,and a sprocket chain with which said chain is engaged spanning said 4.In a device of the class described, aframe having a bed, typesupported'on said bed,{,an inking ribbon d sposed,over said type, meansfor-feeding said ribbon, a carriage slidable over said frame, saidcarriage comprising bearings eccentrically mounted therein, animpression roll adjustably journaled in said bearings, a sprocket wheelfor rotating said wheel, and*a sprocket chain with Which said wheel isengaged spanning said frame.

In witness that I claim theforegoing I have hereunto subscribed my namethis 29th day of April, 1919.

V EDWARD'O, STUMPF.

